Alert archive / Arkansas / Flash Flood Warnings in 2015

Flash Flood Warning 94, NWS Little Rock, AR

July 22, 2015Independence County, Jackson County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 22, 2015, 10:52 PM CDT for Independence County, Jackson County, Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 22, 2015, 10:52 PM CDT (03:52 UTC)
Expired: Jul 23, 2015, 1:45 AM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Independence County, AR, Jackson County, AR

The radar

The Little Rock radar (KLZK), 122 km from the middle of the area, began a volume at 03:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Little Rock, AR (KBYH), launched 00:00Z, 3.9 hours before the alert went out and 161 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1858 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 946 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 182 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this flash flood warning went out at Jul 22, 9:55 PM CDT, 57 minutes earlier.

Area forecast discussion, Jul 22, 9:55 PM CDT, 57 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jul 22, 9:30 PM CDT, 1 hour 22 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

In the hours before

Special weather statement, Jul 22, 6:19 PM CDT, 4 hours 33 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
619 PM CDT WED JUL 22 2015

ARZ025-033-034-045>047-230000-
WHITE AR-JACKSON AR-PRAIRIE AR-MONROE AR-WOODRUFF AR-LONOKE AR-
619 PM CDT WED JUL 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR NORTH CENTRAL MONROE...SOUTH
CENTRAL JACKSON...EAST CENTRAL LONOKE...CENTRAL WOODRUFF...
SOUTHEASTERN WHITE AND NORTHERN PRAIRIE COUNTIES UNTIL 700 PM CDT...

AT 618 PM CDT...DOPPLER RADAR WAS TRACKING A LINE OF STRONG
THUNDERSTORMS ALONG A LINE EXTENDING FROM HIGGINSON TO NEAR
THURMAN...AND MOVING EAST AT 40 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THESE STORMS.

STRONG THUNDERSTORMS WILL BE NEAR...
  JUDSONIA AND WEST POINT AROUND 625 PM CDT.
  PRYOR AROUND 630 PM CDT.
  DES ARC AND BALD KNOB AROUND 635 PM CDT.
  HURRICANE LAKE WMA AROUND 640 PM CDT.
  AUGUSTA AROUND 650 PM CDT.
  PATTERSON AND MCCRORY AROUND 700 PM CDT.

OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE LITTLE DIXIE...
DIXIE...WORDEN...HAYLEY...BECTON...GREGORY...GRIFFITHVILLE...
WIVILLE...WALKER AND HOWELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THESE STORMS.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3537 9121 3495 9118 3488 9176 3527 9179
TIME...MOT...LOC 2318Z 256DEG 34KT 3522 9171 3497 9170

56

Special weather statement, Jul 22, 6:40 PM CDT, 4 hours 12 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
640 PM CDT WED JUL 22 2015

ARZ025-033-034-230000-
WHITE AR-JACKSON AR-WOODRUFF AR-
640 PM CDT WED JUL 22 2015

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN JACKSON...NORTHERN
WOODRUFF AND EAST CENTRAL WHITE COUNTIES UNTIL 700 PM CDT...

AT 635 PM CDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 8
MILES WEST OF TUPELO...OR 9 MILES NORTH OF AUGUSTA...MOVING EAST AT
45 MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
TUPELO...ALGOA...MCFADDEN...BRADFORD...BEEDEVILLE...AMAGON...
WELDON...BALCH...BLACKVILLE...SHOFFNER...FITZHUGH...POSSUM GRAPE AND
INGLESIDE.

LAT...LON 3531 9144 3548 9149 3560 9104 3536 9104
TIME...MOT...LOC 2335Z 256DEG 40KT 3542 9137

56

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 22, 8:42 PM CDT	River Flood Warning	LZK	Jackson, Woodruff	11 days
Jul 23, 3:21 AM CDT	Heat Advisory	LZK	Arkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 8 more	16 hr
Jul 23, 1:13 PM CDT	Special Weather Statement	LZK	Cleburne	32 min
Jul 23, 1:39 PM CDT	Special Weather Statement	LZK	Prairie	36 min
Jul 23, 1:45 PM CDT	Special Weather Statement	LZK	Independence	45 min
Jul 23, 2:09 PM CDT	Special Weather Statement	LZK	Saline	36 min
Jul 23, 2:50 PM CDT	Heat Advisory	LZK	Arkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 20 more	23 hr
Jul 23, 2:50 PM CDT	Heat Advisory	LZK	Arkansas, Baxter, Bradley, Calhoun, Clark, Cleburne and 28 more	6 days
Jul 23, 3:24 PM CDT	Special Weather Statement	LZK	Lonoke	36 min
Jul 23, 4:18 PM CDT	Special Weather Statement	LZK	Jefferson	42 min
Jul 23, 4:24 PM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Jefferson, Lonoke	36 min
Jul 23, 4:25 PM CDT	Special Weather Statement	LZK	White	50 min
Jul 23, 4:53 PM CDT	Special Weather Statement	LZK	Arkansas	52 min

Nearby

Flash Flood Warnings in Arkansas, 2015 Every flash flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.